Rentt Faina, a twenty-five- year-old adventurer, has been hacking away at monsters for a decade. However, without much talent for the job, Rentt finds himself stuck hunting Slimes and Goblins for meager amounts of coin every day. Little does he know, all this is about to change when he comes across a seemingly undiscovered path in the Labyrinth of the Moon's Reflection. What awaits him at the end of the path, however, is neither treasure nor riches, but a legendary dragon that wastes no time swallowing him whole! Waking up a short time later, Rentt finds himself not quite dead, but not very alive either— He is nothing more than a pile of bones! Armed with nothing but his trusty sword, tool belt, and ghoulish new looks, Rentt sets off on his quest as a newly reborn Skeleton to achieve Existential Evolution, hoping to one day return to civilization with a more human form. Will Rentt succeed, or will the labyrinth consume him for the rest of his un-death...?
While hunting weak monsters in a labyrinth, perennial bronze-class adventurer Rennt discovers an unexplored passageway. He excitedly begins searching it, hoping to earn wealth and renown, but instead he encounters a dragon, the strongest of all monsters.
In the dungeon, Rentt encounters a rookie adventurer named Rina and attempts to enlist her aid with his predicament.
Seeking answers about his new life, Rentt turns to an old adventuring partner for guidance.
As Rentt prepares to explore a previously uncharted region of the labyrinth, he discovers more about what triggers his ability to evolve.
Rentt rejoins the guild under an assumed name and sets out to explore the uncharted section of the labyrinth, where he encounters an enigmatic and formidable stranger.
After proving himself worthy, Rentt is given the opportunity to take the Bronze-class exam. Together, he and two young adventurers must overcome the challenges that lie ahead in the Labyrinth of the New Moon.
After leading Laura and Ryze to battle against the final boss of the Bronze exams, Rentt is confronted by Sheila, who has grown suspicious of his true identity.
Rentt learns of a powerful new technique that might be the key to reaching Mythril-class, but to use it, he'll need high-quality equipment. The only problem is how to make money while lying low from the guild...
Rentt heads off to a dangerous swamp in search of a medicinal herb for a group of young orphans.
Rentt is given a job by a secretive and important family that has great influence over the city of Maalt.
Rentt makes his way through a complex maze, and its owner gives him his choice of magic item as a reward.
While contemplating his perilous choice to drink the vial of vampire blood, Rentt recounts the story of his past and the events that inspired him to follow his dream of becoming a Mythril-class adventurer.
Complete episode guide for The Unwanted Undead Adventurer with detailed information about every season and episode including air dates, summaries, ratings, and streaming availability in Japan.
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